chore: improve build process

chore: update license information

feat: add import backup button to wallets page

chore: show 'dev' version more often (closes #30)

i18n: add empty count keys

feat: send tx page

refactor: remove react import (react v17)

feat: more utils for translators

feat: wallet info modal

feat: conditional links (closes #5)

feat: near completion with v1 backup importing

refactor: import aliases

feat: transaction search results

refactor: reorganise components, APIErrorResult

feat: address page

feat: search results nav, keyboard shortcut ...

Also implements half of the address page, adds a hook for the syncNode,
and some other miscellaneous refactors.

chore: minor cleanup

feat: most of the search impl

feat: exact matches in search

feat: search box boilerplate

fix: optimise throttle and hooks ...

In the process of fixing some hook dependencies, I introduced a bug
which caused the application to rapidly send requests to the Krist
server (luckily I was using a local Krist instance). To raise awareness
of this if it happens again in the future, I added a notification that
appears whenever the rate limit is hit. Ideally, it should never appear
in production.

feat: nyi warning

chore: update file headers

feat: sync balances with websocket

feat: hide advanced wallet formats